select one of the following methods (P1 Payback period, P2 Accounting rate of return, P3 Net present value or P4 Internal rate of return) and briefly discuss how the method can be used to solve a present day financial or business problem. 

I just need at least 2 paragraps explaining how ONE of these methods (P1-P4 pick one) can be used to solve a present day financial or business problem.

IP due WED 2/22 5 pages

Write a paper that discusses the following 3 elements:

• Provide an overview of how health care in the United States has evolved since the postindustrial period.
• How has the evolution of medical technology, graduate medical education, and the professionalization of medical and nursing staff affected the delivery of care?
• Why has the United States been unsuccessful in evolving the current health care system into a national health care system?

Note: Use APA style and 3 scholarly references.